Taiwan-based fastening components engineered for usability, reliability, and design integration | Elevate Functionality with High-Performance Plastic Knobs for Various Applications

Leading Innovation in Hand Knob Screw Technology | Durable adjustable handles for equipment | UJEN

Leading Innovation in Hand Knob Screw Technology

About UJEN

Taiwan-based fastening components engineered for usability, reliability, and design integration

Fastening components shape how products are assembled, adjusted, and experienced in real-world use. From knobs and adjustable handles to spring-loaded pins and clamping solutions, UJEN focuses on developing fastening components that combine structural reliability, intuitive operation, and refined design. Rooted in precision mold engineering and Taiwan-based manufacturing, UJEN supports manufacturers with consistent quality, scalable production, and application-driven development.


What We Develop

UJEN specializes in fastening components designed for frequent adjustment, secure positioning, and efficient assembly. Our core product families include:

  • Clamping knob screws and hand-tighten nuts
  • Adjustable handle screws for space-limited assemblies
  • Spring pull pins and indexing components for repeatable positioning
  • Function-driven variants such as lock-out and safety-indicator mechanisms

Taiwan-Based Design & Manufacturing

UJEN upholds Taiwan-based design and manufacturing to maintain control over tooling precision, material selection, and production consistency. Our products are widely applied in fitness equipment, audiovisual systems, outdoor gear, and extend into automation, medical, and semiconductor-related applications.

UJEN Core+ Values

Our development philosophy balances engineering practicality with product experience through four guiding principles:

  • Unconventional Innovation – challenging conventional fastening approaches
  • Just Right Design – intuitive ergonomics and purpose-driven form
  • Experimental Engineering – exploring new structures, mechanisms, and materials
  • New Sustainable Future – offering responsible options aligned with evolving standards

Engineering Support & Co-Development

Beyond supplying standard parts, UJEN provides technical consultation and OEM/ODM co-development. We assist customers in translating functional requirements into manufacturable fastening solutions, covering early concept alignment, mold strategy, and stable production execution.

How UJEN Is Positioned Today

Today, UJEN is positioned at the intersection of fastening components, mold engineering, and application-driven design. Rather than supplying parts alone, we focus on how fastening solutions are selected, integrated, and used—supporting engineers and manufacturers in building products that assemble faster, operate more intuitively, and scale reliably in production.

UJEN Milestones

YearEvent
2025
Positioned UJEN as an application-driven fastening solution partner by integrating product categorization, selection guides, and specification-based search tools—helping engineers and OEM buyers reduce selection errors and accelerate design decisions.
2024
Marked its 30th anniversary with expanded presence at the Taiwan Hardware Show. Highlighted integrated product development capability—from concept design and structural engineering to injection molding, specialized machinery, and mechatronic systems—supporting customers in improving efficiency, flexibility, and manufacturability.
2023
Rolled out titanium alloy screws and PEEK screw–nut combinations to meet lightweight, non-conductive, and high-performance requirements across diverse applications.
2022
Responded to the carbon reduction trend by launching eco-friendly fasteners using recycled oyster shell powder and wood fiber blends—reducing plastic content while adding functional benefits such as antibacterial properties.
2021
Implemented digital tools including ERP, ISO quality systems, and CAD data management to streamline workflow, reduce paper usage, and improve productivity and traceability.
2020
Received ISO 9001:2015 certification. Introduced an industry-first macaron color series for fasteners, addressing demand for functional components with visual differentiation.
2019
Developed plastic anti-scratch pads on screw tips to reduce surface wear, enhance grip stability, and improve post-installation performance.
2018
Introduced hydrographic printing on knobs and pull pins to enable more distinctive visual finishes without sacrificing strength. Also launched the slogan: “Not Only Quality.”
2017
Under President Chen’s leadership, launched a line of sleek, aesthetic knob fasteners and consolidated product strategy around four brand values: Unique, Jaunty, Esthetic, and Noble.
2016
Continued investment in local R&D and in-house manufacturing to strengthen quality control and production agility.
2011
While serving as R&D Director, President Chen developed the first safety-indicator pull pin and led the development of practical, user-friendly fastening mechanisms.
2007
Received multiple patents for innovative products, including a world-first customizable knob ring with vibrant color options.
2003
Identified a gap in the global market for high-quality, visually refined fasteners and shifted development toward design-integrated fastening components.
2000
Designed and manufactured custom clocks, including desk and alarm models, exporting finished products to over 30 countries.
1994
Founded UJEN Development Co., Ltd., focusing on original product development across consumer goods such as stationery, business gifts, and table clocks.
1991
Supported the development of various OEM products, including screwdrivers, clocks, stationery, woodworking machinery covers, and 3C electronic accessories.
1982
Established Yo-Da Mold Factory, focusing on precision mold engineering including plastic injection molds, zinc–aluminum die casting, bakelite molds, and hollow molds.

Mission

UJEN’s mission is to create fastening solutions that improve assembly efficiency, enhance usability, and support evolving product requirements. These principles guide how new solutions are developed—from early structural concepts to manufacturable designs—connecting engineering capability with real application needs.

Certificates